Pair page
Gonadorelin with Testosterone
Mechanism-tag overlap and published literature for Gonadorelin and Testosterone, pulled verbatim from each Kalios compound profile. Kalios is a literature reference, not a recommendation.
Mechanism overlap
Mechanism tags are verbatim labels on each compound's profile. Generic tags ("peptide", "small-molecule", "research-chemical") are excluded from this overlap view. Tags are descriptive — not an inference about combined effect.
gnrhsynthetic-gonadotropin-releasing-hormone
androgenprimary-male-sex-hormone
Co-administration notes from the literature
Verbatim summary text pulled from each compound's profile data. Researchers studying Gonadorelin and Testosterone have published these mechanism-level observations. Not a co-administration recommendation.
Gonadorelin's primary modern role is as an adjunct to testosterone replacement therapy. It aims to maintain pituitary LH / FSH signaling and testicular function that TRT would otherwise suppress. Used in many modern TRT protocols that address fertility or testicular-volume preservation.
Quick facts
Gonadorelin
Testosterone
Literature table
Classified references from each compound profile. Click a column header to sort. Click a PMID to open PubMed. Findings are quoted verbatim from each profile's literature_summary; nothing here is added or interpreted.
| Year | Compound | Source | Finding |
|---|---|---|---|
| 2021 | Gonadorelin | Kohn TP, Louis MR, Pickett SM, Lindgren MC, Kohn JR, Pastuszak AW, Lipshultz LI. Effects of subcutaneous gonadotropin-releasing hormone administration on serum hormonal concentrations, semen parameters, and sperm retrieval in men with hypogonadism undergoing testosterone therapy… PMID 33705811 | human study |
| 2002 | Gonadorelin | Pitteloud N, Hayes FJ, Dwyer A, Boepple PA, Lee H, Crowley WF Jr. Predictors of outcome of long-term GnRH therapy in men with idiopathic hypogonadotropic hypogonadism. J Clin Endocrinol Metab. 2002;87(9):4128-4136. PMID: 12213860. PMID 12213860 | human study |
| 1994 | Gonadorelin | Filicori M, Flamigni C, Dellai P, Cognigni G, Michelacci L, Arnone R, Sambataro M, Falbo A. Treatment of anovulation with pulsatile gonadotropin-releasing hormone: prognostic factors and clinical results in 600 cycles. J Clin Endocrinol Metab. 1994;79(4):1215-1220. PMID: 7962300. PMID 7962300 | human study |
| 1986 | Gonadorelin | Santoro N, Filicori M, Crowley WF. Hypogonadotropic disorders in men and women: diagnosis and therapy with pulsatile gonadotropin-releasing hormone. Endocr Rev. 1986;7(1):11-23. PMID: 3082643. (Pulsatile GnRH therapy review.) PMID 3082643 | human study |
| 1982 | Gonadorelin | Hoffman AR, Crowley WF. Induction of puberty in men by long-term pulsatile administration of low-dose gonadotropin-releasing hormone. N Engl J Med. 1982;307(20):1237-1241. PMID: 6811941. (Pivotal pulsatile GnRH clinical paper.) PMID 6811941 | human study |
| 1971 | Gonadorelin | Matsuo H, Baba Y, Nair RM, Arimura A, Schally AV. Structure of the porcine LH- and FSH-releasing hormone. I. The proposed amino acid sequence. Biochem Biophys Res Commun. 1971;43(6):1334-1339. PMID: 4936338. (GnRH primary structure.) PMID 4936338 | preclinical, in vivo |
| 1971 | Gonadorelin | Schally AV, Arimura A, Baba Y, Nair RM, Matsuo H, Redding TW, Debeljuk L. Isolation and properties of the FSH and LH-releasing hormone. Biochem Biophys Res Commun. 1971;43(2):393-399. PMID: 4930263. (Schally GnRH isolation paper — Nobel Prize 1977.) PMID 4930263 | mechanism / discovery |
| 2026 | Gonadorelin | WADA Prohibited List 2026. World Anti-Doping Agency. wada-ama.org. (Gonadorelin banned in males under S2.2.) | regulatory / registry |
| — | Gonadorelin | FDA. Factrel (gonadorelin hydrochloride) Prescribing Information. FDA.gov. Wyeth Ayerst (discontinued). (Historical FDA approval reference.) | regulatory / registry |
| — | Gonadorelin | FDA. Lutrepulse / Lutrelef (gonadorelin acetate) Prescribing Information. FDA.gov. Ferring (discontinued). (Historical FDA pulsatile-pump approval.) | regulatory / registry |
| 2015 | Gonadorelin | Ramasamy R, Armstrong JM, Lipshultz LI. Preserving fertility in the hypogonadal patient: an update. Asian J Androl. 2015;17(2):197-200. PMID: 25337841. (TRT fertility preservation review — HCG context.) PMID 25337841 | research article |
| 2014 | Gonadorelin | Rahnema CD, Lipshultz LI, Crosnoe LE, Kovac JR, Kim ED. Anabolic steroid-induced hypogonadism: diagnosis and treatment. Fertil Steril. 2014;101(5):1271-1279. PMID: 24636400. (Context for modern HPG preservation strategies.) PMID 24636400 | research article |
| 2007 | Testosterone | Haddad RM, Kennedy CC, Caples SM, Tracz MJ, Boloña ER, Sideras K, Uraga MV, Erwin PJ, Montori VM. Testosterone and cardiovascular risk in men: a systematic review and meta-analysis. Mayo Clin Proc. 2007;82(1):29-39. PMID: 17285783. PMID 17285783 | systematic review |
| 2015 | Testosterone | Kaminetsky J, Jaffe JS, Swerdloff RS. Pharmacokinetic Profile of Subcutaneous Testosterone Enanthate Delivered via a Novel, Prefilled Single-Use Autoinjector: A Phase II Study. Sex Med. 2015;3(4):269-279. PMID: 26797061. PMC4721027. PMID 26797061 | human trial, Phase 2 |
| 2018 | Testosterone | Bhasin S, Brito JP, Cunningham GR, Hayes FJ, Hodis HN, Matsumoto AM, Snyder PJ, Swerdloff RS, Wu FC, Yialamas MA. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2018;103(5):1715-1744. PMID: 29562364. PMID 29562364 | human study |
| 2013 | Testosterone | Finkelstein JS, Lee H, Burnett-Bowie SA, Pallais JC, Yu EW, Borges LF, Jones BF, Barry CV, Wulczyn KE, Thomas BJ, Leder BZ. Gonadal steroids and body composition, strength, and sexual function in men. N Engl J Med. 2013;369(11):1011-1022. PMID: 24024838. PMID 24024838 | human study |
| 2008 | Testosterone | Coviello AD, Kaplan B, Lakshman KM, Chen T, Singh AB, Bhasin S. Effects of graded doses of testosterone on erythropoiesis in healthy young and older men. J Clin Endocrinol Metab. 2008;93(3):914-919. PMID: 18160461. PMID 18160461 | human study |
| 2001 | Testosterone | Harman SM, Metter EJ, Tobin JD, Pearson J, Blackman MR; Baltimore Longitudinal Study of Aging. Longitudinal effects of aging on serum total and free testosterone levels in healthy men. J Clin Endocrinol Metab. 2001;86(2):724-731. PMID: 11158037. PMID 11158037 | human study |
| 2025 | Testosterone | WADA. 2025 Prohibited List. Section S1 — Anabolic Agents. World Anti-Doping Agency. | regulatory / registry |
| 2023 | Testosterone | Lincoff AM, Bhasin S, Flevaris P, Mitchell LM, Basaria S, Boden WE, Cunningham GR, Granger CB, Khera M, Thompson IM Jr, Wang Q, Wolski K, Davey D, Kalahasti V, Khan N, Miller MG, Snabes MC, Chan A, Dubcenco E, Li X, Yi T, Huang B, Pencina KM, Travison TG, Nissen SE; TRAVERSE Stu… PMID 37326322 | research article |
| 2018 | Testosterone | Mulhall JP, Trost LW, Brannigan RE, Kurtz EG, Redmon JB, Chiles KA, Lightner DJ, Miner MM, Murad MH, Nelson CJ, Platz EA, Ramanathan LV, Lewis RW. Evaluation and Management of Testosterone Deficiency: AUA Guideline. J Urol. 2018;200(2):423-432. PMID: 29601923. PMID 29601923 | research article |
| 2016 | Testosterone | Snyder PJ, Bhasin S, Cunningham GR, et al. Effects of Testosterone Treatment in Older Men. N Engl J Med. 2016;374(7):611-624. PMID: 26886521. PMID 26886521 | research article |
| 2016 | Testosterone | Morgentaler A, Zitzmann M, Traish AM, Fox AW, Jones TH, Maggi M, Arver S, Aversa A, Chan JC, Dobs AS, Hackett GI, Hellstrom WJ, Lim P, Lunenfeld B, Mskhalaya G, Schulman CC, Torres LO. Fundamental Concepts Regarding Testosterone Deficiency and Treatment: International Expert Con… PMID 27313122 | research article |
| 2016 | Testosterone | Shoskes JJ, Wilson MK, Spinner ML. Pharmacology of testosterone replacement therapy preparations. Transl Androl Urol. 2016;5(6):834-843. PMID: 28078214. PMID 28078214 | research article |
Related pair pages
More research context
Frequently asked
Have Gonadorelin and Testosterone been studied together?
Researchers have published mechanistic-level co-administration discussion of Gonadorelin and Testosterone. No human co-administration trials are catalogued in the Kalios profiles. The pair page lists each compound's classified literature; full citations sit on each individual profile.
What mechanisms do Gonadorelin and Testosterone share?
Gonadorelin and Testosterone do not share a specific mechanism tag on their Kalios profiles. They appear on the same pair page because at least one profile lists the other in its co-administration data.
What is the FDA status of Gonadorelin and Testosterone?
Gonadorelin: Historical approval (Factrel, Lutrepulse); compounded off-label currently. Testosterone: Approved (multiple formulations). FDA-status text is pulled verbatim from each compound profile. See /fda-pcac-2026.html for the broader FDA Pharmacy Compounding Advisory Committee context.
Where can I find the full research on Gonadorelin and Testosterone?
Full citation lists, dosing tables from the literature, reconstitution data, and the FDA / WADA status are on the individual compound profiles: the Gonadorelin profile and the Testosterone profile. The Kalios Stack Research Tool hub lists every compound covered.
Last updated: April 2026